Launcher: Hijri (Islamic) date under the clock, like shamsi_date

[iHaris93]

The launcher already shows the Solar Hijri date (shamsi_date) and the lunisolar date (lunar_date) beside the Gregorian one. I'd like the same for the Islamic lunar Hijri calendar, which a large share of Android TV owners in Pakistan, the Gulf, Egypt, Indonesia, Malaysia, Turkey and North Africa check daily (Ramadan, Eid, Muharram, Friday prayers).

Proposal

• hijri_date (bool, off by default): shows today's Hijri date with the Gregorian one, e.g. 17 Jumada al-Awwal 1448 AH. It follows date_below_clock like the Shamsi and lunar lines.
• hijri_adjust (-2 to +2 days, default 0): Hijri months start on local moon sighting, so countries often run a day apart (Pakistan is usually one day behind Saudi Arabia). One offset key covers that without any network lookup.
• Optional hijri_variant: umalqura (default) or civil.

Why it fits the launcher's rules

• Offline and tiny. Android has android.icu.util.IslamicCalendar since API 24, within the launcher's minSdk 26, so there's no new dependency or network access. The tabular (civil) calendar is also a few lines of arithmetic, like Shamsi.java.
• Off by default, so nothing changes for any TV that doesn't set it.
• Month names in English transliteration, with Arabic (values-ar) and Urdu where translations exist.

Today's workaround

The Prayer Times add-on shows the Hijri date inside its own page, but module cards are static, so it can't appear on Home. With this key the date would sit on Home next to the clock, where people look.

Tested context: CANDY Android TV DVB (Haier, MediaTek m7332), Android TV 14, with the CleanYourTV launcher and the dock-glass theme. My TV list is in #3559.

[Gathin23]

Thanks for the careful proposal, @iHaris93. There's no Hijri key in the launcher today; shamsi_date and lunar_date are the two extra calendars it has (https://github.com/Gathin23/cleanyourtv/blob/main/themes/README.md#keys). The launcher is close to its hard APK size limit, so new Home features take one of two routes now:

• An add-on can put a line under the clock through game_day: the add-on publishes the text and the launcher only reads it, so the core stays offline and the same size. @ishfanatic has proposed exactly that for Prayer Times in Prayer Times: adhan per prayer, iqamah, Jumu'ah, Ramadan and the next prayer on Home (all off by default) #3647, with the Hijri date in that Home line, so that thread is a good place to add your hijri_adjust idea.
• A fork with the date beside the clock gets a row in https://github.com/Gathin23/cleanyourtv/blob/main/SHOWCASE.md, where a few projects already show a Hijri date.

Either way the date reaches Home without growing the core.